Giải giúp tôi bài này

2. If you try hard, you can pass the examination.

3. If he didn't get up late, he would catch the bus.

4. Unless he works harder, he'll lose his job.

5. Unless it is sunny, the children won't go swimming.

6. Unless she works harder, she will fail her entrance exam.

7. If Phong had enough money, he could travel...

8. If tourists didn't throw litter in the river, the water wouldn't be polluted.

9. If these students worked hard, they could pass...